code: def process_sentencepiece_token_for_alignment(t):
      """Add word boundary markers, removes token prefix (space meta-symbol)."""
      if t.startswith("▁"):
          return "<w>" + re.sub(r"^▁", "", t)
      else:
          return t
  
file_path: jiant/jiant/utils/tokenization_utils.py
imports: import re
  from typing import Sequence
label_desc: Use image node_id 7 for calling a global function with example usage: process_sentencepiece_token_for_alignment(t) and returns: unknown, t